Home / 86,301.60-129,408.48-39,514.38

Finding the Fourth Proportional to 86,301.60, 129,408.48 and 39,514.38

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Solution

The fourth proportional to 86,301.60, 129,408.48 and 39,514.38 is: 59,251.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,301.60 : 129,408.48 = 39,514.38 : x
  2. Step 2: Convert to fraction form
    86,301.60/129,408.48 = 39,514.38/x
  3. Step 3: Cross multiply
    86,301.60x = 129,408.48 × 39,514.38
  4. Step 4: Simplify right side
    86,301.60x = 5,113,495,853.94
  5. Step 5: Solve for x
    x = 5,113,495,853.94/86,301.60
  6. Step 6: Final answer
    x = 59,251.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.